US Bridges

Byron CR RD over Byron Creek

PoorPosted for load

Douglas County, Oregon · 1.70 NE JCT CO RD 38 · Structure no. 19B11 000000140

Built
1981
44 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
95
2020 count
Owner
Local
Other Local Agency

About this bridge

Byron CR RD over Byron Creek is a steel stringer/multi-beam or girder carrying Byron CR RD over Byron Creek in Douglas County, Oregon. It was built in 1981, so it is 44 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 95 vehicles a day, projected to reach 110 by 2025. The structure is 45 ft (13.7 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesByron CR RD
CrossesByron Creek
Location1.70 NE JCT CO RD 38
StateOregon
Coordinates43.0279, -123.5397
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length45 ft (13.7 m)
Longest span35 ft (10.7 m)
Deck width16 ft (4.9 m)
Roadway width11 ft (3.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2020)
Projected traffic110 by 2025
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$299,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was Byron CR RD over Byron Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Byron CR RD over Byron Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2023.

How much traffic does Byron CR RD over Byron Creek carry?

About 95 vehicles per day (2020 count).

How long is Byron CR RD over Byron Creek?

The structure is 45 ft (13.7 m) long with a longest span of 35 ft (10.7 m) and a deck 16 ft wide.

Who owns Byron CR RD over Byron Creek?

It is owned by the Other Local Agency.